Network Security

Dear All,  I have configured remote access VPN on my ASA-5510 Firewall 8.4(2) using DynDNS as I do not have static IP addresses. Everything was working fine but now my users cannot access the VPN tunnel from outside. (No changes have been made on the...

HI all.has anyone done this ?i'm aware to the limitations :•In transparent mode, you must specify the real and mapped interfaces; you cannot use any. •In transparent mode, you cannot configure interface PAT, because the transparent mode interfaces do...

I have a number of 18xx, 19xx, 28xx and 29xx isr's.  I am wanting to know if someone makes any configuration changes to any of them.  I have used what's up gold to send gather custom snmp traps and send email alerts when this happens and that works f...

Hi everybody,i want to block teamviewer using cisco ASA-5585 asdm..any one have idea how to block it using regular expression...RegardsSher

Hello,I have a question regarding the order of the rules in a firewall.The question is whether the order of the rules affects the firewall performance.All I could find in the community were old discussions, which claimed that placing the most used ru...

Hi,I bought Cisco ASA 5505 firewall for my new home / office. I have practically no profound expertese with firewalls and specially no with ASA programming. I know basic terms and mechanics, but more sophisticated solutions are out of my knowledge. M...

Hi, i would like to know how often does Cisco release updates for the Signature engine for the IPS appliances? I was not sure to make the auto update from Cisco.com to be every-day, every-hour or once a week?Also can you advise me of the recommended ...

is it possible to intercept a dns lookup on a dmz and direct it to an internal server.I have a wireless controller for guest access on a dmz. to authenticate, the wireless controller intercepts the first get syn and redirects it to a guest manager on...

Hi, Please clarify my queries on the port assignment in WAN ConnectionI am having a host A and Host B and trying to access Host C on same Port(Let us say port 20)...Will This HappenPlease clarify my query

Hello,We have a big trouble, becase when we try to "save changes" in a Firewall ASA-5520 this show an error FAILED, and because of this we have lost parts of the configuration. Did you know any solution?sputnik# wr mem Building configuration...No mem...

Hi,    I am looking into buying an ASA5505 but I would like to know if it is going to work in my setup.  I have an Internet connection and 2 seperate networks.  I know that the ASA5505 has 8 ports and I would like to know if I can assign each port to...

communication between 2 vlans.i have 2 vlansVlan 100 ip add 1.1.1.1!!!Vlan 200ip add    2.2.2.2i want to make communication between 2 vlans on firewall 5520 ASA 8.2.Please provide configuration for same.

Hi all,I should upgrade ASA 5550 with nat controller enabled, from 7.2 to 8.x, I've been reading nat is differently configured up from release 8.3. So I choosed to upgrade to 8.2 release, can someone suggest me if there could be any incompatibility c...